CN105228256A - Radio communication device, wireless communication system and wireless communications method - Google Patents

Radio communication device, wireless communication system and wireless communications method Download PDF

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Publication number
CN105228256A
CN105228256A CN201510587317.4A CN201510587317A CN105228256A CN 105228256 A CN105228256 A CN 105228256A CN 201510587317 A CN201510587317 A CN 201510587317A CN 105228256 A CN105228256 A CN 105228256A
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China
Prior art keywords
communication device
frequency band
radio communication
mobile radio
base station
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Granted
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CN201510587317.4A
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Chinese (zh)
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CN105228256B (en
Inventor
太田好明
河崎义博
矢野哲也
田中良纪
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Fujitsu Ltd
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Fujitsu Ltd
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Priority to CN201510587317.4A priority Critical patent/CN105228256B/en
Publication of CN105228256A publication Critical patent/CN105228256A/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems

Abstract

The present invention relates to radio communication device, wireless communication system and wireless communications method, the use effectively can carrying out multiple frequency band controls.Radio communication device (1,2) uses multiple frequency band to communicate.Radio communication device (1) is when carrying out the process of random access, and in the first frequency band, sent to radio communication device (2) by the control message comprising identifying information, this identifying information represents second frequency band different from the first frequency band.Radio communication device (2) in the first frequency band from radio communication device (1) receiving control message, and uses the second frequency band represented by the identifying information being contained in control message to carry out data communication.

Description

Radio communication device, wireless communication system and wireless communications method
The application is national applications number is 201080063320.1, and entering the National Phase in China date is on 08 07th, 2012, and denomination of invention is the divisional application of the application for a patent for invention of " radio communication device, wireless communication system and wireless communications method ".
Technical field
The present invention relates to radio communication device, wireless communication system and wireless communications method.
Background technology
Now, the wireless communication system such as mobile telephone system, wireless MAN (MetropolitanAreaNetwork: metropolitan area network) is widely used.In addition, in order to realize the further high speed high capacity of radio communication, follow-on wireless communication technology is proceeded to the discussion enlivened.
Such as, as in the 3GPP (3rdGenerationPartnershipProject: third generation partner program) of standardizing body, propose the scheme being called as the communication standard of LTE (LongTermEvolution: Long Term Evolution) of the communication of the frequency band that can realize maximum use 20MHz.And, as the follow-on communication standard of LTE, propose can realize maximum use 5 20MHz frequency band (namely, the frequency band of 100MHz) the scheme (for example, referring to non-patent literature 1,2) being called as the communication standard of LTE-A (LTE-Advanced) of communication.Also proposed in LTE-A, the scheme (for example, referring to non-patent literature 3) that the quantity of the frequency band of use dynamically changes according to flow (Traffic).
In addition, in a wireless communication system, sometimes random access is carried out from the radio communication device (such as base station) of radio communication device (such as mobile radio station) to the opposing party that the distribution carrying out Radio Resource controls of a side.The random access from mobile radio station to base station can be carried out when following, such as: during (1) mobile radio station maiden visit base station, (2) to base station requests for sending the distribution of the Radio Resource of data time, (3) set up synchronous when receiving data from base station time, (4) obtain synchronous with moving target base station when switching (HandOver) time etc.
Random access has competitive mode (ContentionBased) random access and non-competing formula (Non-contentionBased) random access (for example, referring to the 10.1.5 joint of non-patent literature 4 and Section 5.1 of non-patent literature 5).When carrying out random access to base station from mobile radio station, in competitive mode random access, mobile radio station optional burst from multiple burst is sent as random access header (randomaccesspreamble) to base station.In non-competing formula random access, base station specifies the information of burst to mobile radio station notice, and the burst corresponding with the notice from base station sends as random access header by mobile radio station.
Non-patent literature 1:3GPP (3rdGenerationPartnershipProject), " RequirementsforfurtheradvancementsforEvolvedUniversalTer restrialRadioAccess (E-UTRA) (LTE-Advanced) ", 3GPPTR36.913V8.0.1,2009-03.
Non-patent literature 2:3GPP (3rdGenerationPartnershipProject), " FeasibilitystudyforFurtherAdvancementsforE-UTRA (LTE-Advanced) ", 3GPPTR36.912V9.0.0,2009-09.
Non-patent literature 3:3GPP (3rdGenerationPartnershipProject), " Theneedforadditionalactivationprocedureincarrieraggregat ion ", 3GPPTSG-RANWG2#67bisR2-095874,2009-10.
Non-patent literature 4:3GPP (3rdGenerationPartnershipProject), " EvolvedUniversalTerrestrialRadioAccess (E-UTRA) andEvolvedUniversalTerrestrialRadioAccessNetwork (E-UTRAN); Overalldescription ", 3GPPTS36.300V9.0.0,2009-06.
Non-patent literature 5:3GPP (3rdGenerationPartnershipProject), " EvolvedUniversalTerrestrialRadioAccess (E-UTRA) MediumAccessControl (MAC) protocolspecification ", 3GPPTS36.321V9.1.0,2009-12.
But, multiple frequency band can used carry out in the wireless communication system communicated, as mentioned above, consider the quantity changing used frequency band according to flow.But, in the method described in above-mentioned non-patent literature 3, after starting to communicate between radio communication device the process of the random access (complete after), again carry out the process making it possible to other the frequency band of use except the frequency band starting communication.In the method, for the situation (such as, specify that and send the very large situation of data volume) etc. that specify that the frequency band that will use other before the communication starts, process efficiency reduces.
Summary of the invention
The present invention completes in view of such situation, its object is to provide radio communication device, wireless communication system and wireless communications method that the use effectively can carrying out multiple frequency band controls.
In order to solve the problem, provide a kind of and using multiple frequency band to carry out the radio communication device carrying out with other radio communication device communicating.This radio communication device has acceptance division and control part.Acceptance division, when carrying out the process of random access of the radio communication device for other, comprises the control message of identifying information at the first band reception, this identifying information represents second frequency band different from the first frequency band.Control part controls, to use the second frequency band represented by the identifying information being contained in control message to carry out data communication with other radio communication device.
In addition, in order to solve the problem, provide a kind of and using multiple frequency band to carry out the radio communication device carrying out with other radio communication device communicating.This radio communication device has control part and sending part.Control part selects second frequency band different from the first frequency band as the frequency band for data communication.Sending part is when carrying out the process of random access, and to send to other radio communication device at the first frequency band and comprise the control message of identifying information, this identifying information represents the second frequency band selected by control part.
In addition, in order to solve the problem, provide a kind of and using multiple frequency band to carry out the wireless communication system communicated.This wireless communication system has the first radio communication device and the second radio communication device.First radio communication device is when carrying out the process of random access, and send the control message comprising identifying information at the first frequency band, this identifying information represents second frequency band different from the first frequency band.Second radio communication device from the first radio communication device receiving control message, and uses the second frequency band represented by the identifying information being contained in control message to carry out data communication at the first frequency band.
In addition, in order to solve the problem, provide a kind of and comprising the wireless communications method using multiple frequency band to carry out the wireless communication system of the first radio communication device and the second radio communication device communicated.In this wireless communications method, first radio communication device is when carrying out the process based on the random access of the second radio communication device, send the control message comprising identifying information to the second radio communication device at the first frequency band, this identifying information represents second frequency band different from the first frequency band.Second radio communication device uses the second frequency band represented by the identifying information being contained in control message to carry out data communication at the first frequency band from the first radio communication device receiving control message.
According to above-mentioned radio communication device, wireless communication system and wireless communications method, the use effectively can carrying out multiple frequency band controls.
By the detailed description of carrying out the preferred embodiment of the present invention referring to accompanying drawing, above-mentioned and other object, feature and advantage of the present invention can become clearly.
Accompanying drawing explanation
Fig. 1 is the figure of the wireless communication system representing the first execution mode.
Fig. 2 is the figure of the mobile communication system representing the second execution mode.
Fig. 3 is the precedence diagram of the process representing competitive mode random access.
Fig. 4 is the precedence diagram of the process representing non-competing formula random access.
Fig. 5 is the figure of the component carrier (ComponentCarrier) represented for radio communication.
Fig. 6 is the block diagram representing base station.
Fig. 7 is the block diagram representing mobile radio station.
Fig. 8 is the flow chart of the base station process representing the second execution mode.
Fig. 9 is the flow chart of the mobile radio station process representing the second execution mode.
Figure 10 is the figure of the first random access example representing the second execution mode.
Figure 11 is the figure of the second random access example representing the second execution mode.
Figure 12 is the figure of the 3rd random access example representing the second execution mode.
Figure 13 is the figure of the first form example representing Msg0.
Figure 14 is the figure of the second form example representing Msg0.
Figure 15 is the figure of the 3rd form example representing Msg0.
Figure 16 is the figure of the first little adjustment example representing Msg0.
Figure 17 is the figure of the second largest little adjustment example representing Msg0.
Figure 18 is the figure of the third-largest little adjustment example representing Msg0.
Figure 19 is the flow chart of the base station process representing the 3rd execution mode.
Figure 20 is the flow chart of the mobile radio station process representing the 3rd execution mode.
Figure 21 is the figure of the first random access example representing the 3rd execution mode.
Figure 22 is the figure of the second random access example representing the 3rd execution mode.
Figure 23 is the figure of the 3rd random access example representing the 3rd execution mode.
Figure 24 is the figure of the first form example representing Msg2.
Figure 25 is the figure of the second form example representing Msg2.
Figure 26 is the figure of the 3rd form example representing Msg2.
Figure 27 is the flow chart of the base station process representing the 4th execution mode.
Figure 28 is the flow chart of the mobile radio station process representing the 4th execution mode.
Figure 29 is the figure of the first random access example representing the 4th execution mode.
Figure 30 is the figure of the second random access example representing the 4th execution mode.
Figure 31 is the figure of the 3rd random access example representing the 4th execution mode.
Embodiment
Below, with reference to accompanying drawing, present embodiment is described in detail.
[the first execution mode]
Fig. 1 is the figure of the wireless communication system representing the first execution mode.Wireless communication system involved by first execution mode comprises radio communication device 1,2.Radio communication device 1,2 uses multiple frequency band to communicate.Such wireless communication system such as can be embodied as lte-a system.In LTE-A, sometimes multiple frequency band is called component carrier (CC:ComponentCarrier).
The distribution that radio communication device 1 carries out Radio Resource controls.Radio communication device 2, under the control of radio communication device 1, carries out data communication between radio communication device 1 (or other radio communication device).Such as, using radio communication device 1 as base station or relay station, radio communication device 2 can be realized as subscriber station.Or, also using radio communication device 1 as base station, radio communication device 2 can be realized as relay station.Radio communication device 1,2 can be fixed radio communication device, also can be mobile radio communication device.
Radio communication device 1 has control part 1a and sending part 1b.Frequency band #1 is set as the frequency band that radio communication device 2 uses in the process of random access by control part 1a.In addition, the frequency band selecting frequency band #2 to use in data communication as radio communication device 2.Control message involved by random access sends to radio communication device 2 at frequency band #1 by sending part 1b.The identifying information representing frequency band #2 is inserted in this control message.In addition, distinguished corresponding in advance identifying information (such as, unique numbering) to multiple frequency band.
Radio communication device 2 has acceptance division 2a and control part 2b.Acceptance division 2a receives the control message involved by random access at frequency band #1 from radio communication device 1.Control part 2b confirms the identifying information that the control message received comprises, and carries out controlling to use the frequency band #2 represented by identifying information to carry out data communication.The random access target of radio communication device 1 and data communication object are such as radio communication devices 1.But when switching from radio communication device 1 to other radio communication device, random access target and data communication are to liking the radio communication device switching target.
As mentioned above, as random access, radio communication device 2 can carry out non-competing formula random access or competitive mode random access.Such as, when non-competing formula, consider to use and specify the message (Msg0) of the burst of random access header or be used as control message as random access response (randomaccessresponse) (Msg2) of the response to random access header (Msg1).When competitive mode, consider to use random access response to be used as control message.
In addition, if radio communication device 2 in frequency band #1 receiving package containing the control message of identifying information, then can the process of random access after frequency band #2 proceeds.In addition, when frequency band #2 is in unactivated state, frequency band #2 can be changed to state of activation in the moment receiving the control message comprising identifying information by radio communication device 2.In addition, frequency band #2 also can be changed to state of activation in the moment receiving the control message comprising identifying information by radio communication device 1.In this case, radio communication device 1,2 can not receive and dispatch the control message for frequency band #2 being changed to state of activation in addition.
In the wireless communication system involved by the first such execution mode, utilize radio communication device 1, select frequency band #2 to carry out as radio communication device 2 frequency band that data communication uses.And when carrying out the process of random access, in frequency band #1, the control message comprising the identifying information representing frequency band #2 sends to radio communication device 2.In addition, utilizing radio communication device 2, when carrying out the process of random access, in frequency band #1, containing the control message of the identifying information representing frequency band #2 from radio communication device 1 receiving package.And, use the frequency band #2 represented by identifying information to carry out data communication.
Thus, the usage license of different from the frequency band #1 used when the process of random access starts frequency band #2 can be supplied to radio communication device 2 during the process of carrying out random access.That is, in the process of random access, can realize across carrier dispatching (crosscarrierschedule).Therefore, after the process of random access, the process of the usage license that frequency band #2 is provided to radio communication device 2 can not carried out in addition, thus the use effectively can carrying out multiple frequency band controls.
In the following second ~ four execution mode, the situation of the mobile communication system wireless communications method of the first execution mode being applied to LTE-A is described in more detail.But the wireless communications method of the first execution mode also can be applied to mobile communication system, the fixed wireless communications system of the communication mode employed beyond LTE-A.
[the second execution mode]
Fig. 2 is the figure of the mobile communication system representing the second execution mode.Mobile communication system involved by second execution mode comprises base station 10, mobile radio station 20 and relay station 30.In this mobile communication system, the radio communication using at most 5 component carriers can be carried out.
Base station 10 is direct or carries out the radio communication device that communicates via relay station 30 with mobile radio station 20.Base station 10 and upper station (not shown) wired connection, pass on user data between wired interval and radio zone.The Radio Resource of the Radio Resource of the link between base station 10,10 pairs, base station and mobile radio station 20 and the link between base station 10 and relay station 30 manages.
Mobile radio station 20 be access base station 10 or relay station 30 to carry out the wireless terminal device of radio communication.Such as, mobile phone, portable information terminal device can be used as mobile radio station 20.Mobile radio station 20 pairs of base stations 10 or relay station 30 carry out random access to set up synchronously, afterwards, carrying out the transmission of data, reception.
Relay station 30 is to the radio communication device sending data and carry out relaying between base station 10 and mobile radio station 20.Relay station 30 can be Fixed Communication Units, also can be mobile communications device.Relay station 30 carries out random access to set up synchronously to base station 10 sometimes.In addition, the Radio Resource of the link between relay station 30 pairs of relay stations 30 and mobile radio station 20 manages.
In the explanation of the second following execution mode, the process of the random access carried out between base station 10 and mobile radio station 20 is described.Also the process of identical random access can be carried out between base station 10 with relay station 30, between relay station 30 and mobile radio station 20.
Fig. 3 is the precedence diagram of the process representing competitive mode random access.Along number of steps, the order shown in Fig. 3 is described.In addition, consider here to close the situation that one-component carrier wave carries out the process of random access.
(step S11) if produce the data sent in up link (UL), then mobile radio station 20 selects an arbitrary burst from predefined multiple burst.Then, physical accidental access path (PRACH:PhysicalRandomAccessChannel: physical accidental access path) is used to be sent to base station 10 by the random access header (Msg1) comprising the burst of selection.Now, on prach, the situation that multiple mobile radio station sends the Msg1 of identical burst can be produced, i.e. the situation of random access competition.
(step S12) if base station 10 detects Msg1 on prach, then measures the UL transmitting time point of mobile radio station 20, and distributes UL Radio Resource to mobile radio station 20.Then, transmission comprises for making the synchronous information of UL time point, representing random access response (Msg2) of the information of the UL Radio Resource be assigned with.When creating competition, the mobile radio station that have sent Msg1 receives Msg2 respectively.
(step S13) is if mobile radio station 20 receives Msg2, then use the UL Radio Resource distributed by base station 10, scheduling transmission (ScheduledTransmission) (Msg3) that comprise the identifying information of mobile radio station 20 is sent to base station 10.When creating competition, the mobile radio station that have sent Msg1 (that is, receiving Msg2) sends Msg3 respectively.In this case, the multiple Msg3 interference same Radio Resource sent.
The UL Radio Resource that (step S14) base station 10 is distributed in step s 12 detects Msg3.According to the identifying information that Msg3 comprises, the mobile radio station 20 having carried out random access can be identified.Like this, base station 10 will represent that contention resolved (ContentionResolution) (Msg4) having recognized mobile radio station 20 sends to mobile radio station 20.Afterwards, set up synchronous between base station 10 with mobile radio station 20, and can data communication be carried out.
But, when creating competition, the identifying information of the mobile radio station of transmission source cannot be extracted from Msg3.In this case, base station 10 sends the message representing and create competition.After receiving the standby random time of the mobile radio station 20 of this message, return step S11, again perform the process of random access.If competition is eliminated, then sets up synchronous between base station 10 with mobile radio station 20, and can data communication be carried out.
Fig. 4 is the precedence diagram of the process representing non-competing formula random access.By number of steps, the order shown in Fig. 4 is described.In addition, consider here to close the situation that one-component carrier wave carries out the process of random access.
(step S21) if the data that down link (DL) sends arrive, then a untapped burst is selected in base station 10 from predefined multiple burst.Then, sent specifying to mobile radio station 20 by indivedual headers notice (Msg0) of the burst selected.Now, exclusive control is carried out in base station 10, makes the phase at the same time not distribute same burst to multiple mobile radio station.
(step S22) mobile radio station 20 in certain hour (valid expiration date), uses PRACH to be sent to base station 10 by the Msg1 comprising the burst of being specified by Msg0 after receiving Msg0.Here, the burst of specifying is assigned to the burst of mobile radio station 20 exclusively, so can not produce the competition of random access within valid expiration date.
(step S23) if base station 10 detects Msg1 on prach, then distributes UL Radio Resource to mobile radio station 20.Then, the Msg2 comprising the information representing the UL Radio Resource be assigned with is sent to mobile radio station 20.Afterwards, data communication can be carried out between base station 10 and mobile radio station 20.Owing to not competing, so in non-competing formula random access, can not Msg3, Msg4 be received and dispatched.
Can be at war with formula random access when following, such as: during (1) mobile radio station 20 maiden visit base station 10, (2) mobile radio station 20 to the distribution of base station 10 requesting radio resource time.Non-competing formula random access can be carried out, such as: when (3) mobile radio station 20 is set up synchronous when receiving data from base station 10, (4) mobile radio station 20 is when setting up synchronous when switching from other base station to base station 10 with base station 10 when following.
But, when non-competing formula random access should be carried out (such as, during switching, mobile radio station 20 is when setting up synchronous when receiving data from base station 10), when the burst of independent allocation in base station 10 exhaustion, the Msg0 not comprising indivedual header is received and dispatched.In this case, can be at war with formula random access.In addition, in a handoff situation, Msg0 sends from the base station before switching to mobile radio station 20.In addition, in this second embodiment, consider that base station 10 and mobile radio station 20 carry out the situation of the process of non-competing formula random access.
Fig. 5 is the figure of the component carrier represented for radio communication.As mentioned above, base station 10 and mobile radio station 20 maximum use 5 component carrier (CC#1 ~ #5) coming can carry out radio communication.The bandwidth of CC#1 ~ #5 can all identical also can be different.
There is provided the CI (CarrierIndicator) of 3 as identifying information respectively to CC#1 ~ #5.0b000 (0) represents that CC#1,0b001 (1) represent that CC#2,0b010 (2) represent that CC#3,0b011 (3) represent that CC#4,0b100 (4) represent CC#5.0b101 (5) and 0b110 (6) is the value (predetermined value) do not used.As described later, 0b111 (7) is sometimes for representing self component carrier.
Base station 10 sets the state of CC#1 ~ #5 respectively according to mobile radio station.Mobile radio station 20, according to the state of CC#1 ~ #5, controls the wireless receiving process of each component carrier.Such as, CC#1 ~ #5 can be classified as " ConfiguredbutDeactivated (configure but stop using) CC ", " ConfiguredandActivated (configuration and activation) CC " and " PDCCHmonitoringset (monitoring group) " according to its state.
" ConfiguredbutDeactivatedCC " is although be current not used for data communication but the component carrier of the state that can use (unactivated state).Mobile radio station 20 can not be monitored the Downlink Physical control channel sent control information (PDCCH:PhysicalDownlinkControlCHannel: physical down control channel) and any one of Downlink Physical sharing channel (PDSCH:PhysicalDownlinkSharedCHannel: downlink physical shared channel) sending data-signal in the component carrier of unactivated state.That is, the wireless receiving process of this frequency band can be stopped.
" ConfiguredandActivatedCC " is at present for the component carrier of the state (state of activation) of data communication.Mobile radio station 20 at least carries out wireless receiving process for the PDSCH to mobile radio station 20 in the component carrier of state of activation.
" PDCCHmonitoringset " is state of activation and has the set of setting to the component carrier of the possibility of the PDCCH of mobile radio station 20.PDCCH is monitored in the component carrier that mobile radio station 20 comprises in this set.When the length of the signal of PDCCH is not fixing, mobile radio station 20 couples of PDCCH carry out blind (blind) decoding.That is, attempt multiple decoding according to the length of the signal obtained, thus control information is extracted.In addition, " PDCCHmonitoringset " can be defined as the subset of " ConfiguredandActivatedCC ", but sometimes also can carry out the reception process of PDCCH at whole " ConfiguredandActivatedCC ".In this case, " PDCCHmonitoringset " refers to identical set with " ConfiguredandActivatedCC ".
In addition, the component carrier that can set PDCCH can be different according to mobile radio station.In addition, a part of CC#1 ~ #5 can be set as anchor component carrier (AnchorComponentCareer) (ACC) by base station 10.ACC is the component carrier that mobile radio station should be monitored.When setting ACC, " PDCCHmonitoringset " at least comprises ACC.Be set as that the component carrier of ACC can be specified according to community, also can specify according to mobile radio station.
In addition, base station 10 and mobile radio station 20, in order to carry out twocouese communication, can use time division duplex (TDD:TimeDivisionDuplex), also can use Frequency Division Duplexing (FDD) (FDD:FrequencyDivisionDuplex).When employing TDD, each CC sets a frequency band.When employing FDD, each CC sets the frequency band of a pair UL and the frequency band of DL.The process of random access described later can both be carried out in arbitrary situation of the situation of the frequency band of UL and the frequency band of DL being separated and indiscrete situation.
Fig. 6 is the block diagram representing base station.Base station 10 has: wireless communication part 11, scheduler 12, wire communication portion 13, control part 14, control plane portion 15, PDCCH control part 16, datum plane portion 17 and RAR control part 18.
Wireless communication part 11 is the wave points carrying out radio communication with mobile radio station 20 and relay station 30.Wireless communication part 11 comprises the signal transacting of demodulating and decoding to the wireless signal received from mobile radio station 20 or relay station 30, and user data, control information is extracted.Further, subtend mobile radio station 20 or relay station 30 send user data, control information are carried out comprising code modulated signal transacting, and are carried out wireless transmission.
Scheduler 12 carries out the distribution (scheduling) of the Radio Resource to mobile radio station 20 and relay station 30 according to the instruction from control part 14.Such as, scheduler 12, when carrying out the process of random access, distributes UL Radio Resource to mobile radio station 20, is notified by the UL Radio Resource of distribution to wireless communication part 11.
Wire communication portion 13 is the communication interfaces of carrying out wire communication with upper station.Wire communication portion 13 receives the user data to mobile radio station 20 from upper station.The user data received is transferred to mobile radio station 20 under the scheduling of scheduler 12.In addition, the user data extracted by wireless communication part 11 is transferred to upper station by wire communication portion 13.
The process in control part 14 pairs of wireless communication parts 11, scheduler 12 and wire communication portion 13 controls.Control plane portion 15 and datum plane portion 17 is provided with in control part 14.PDCCH control part 16 is provided with in control plane portion 15.RAR control part 18 is provided with in datum plane portion 17.
The transmitting-receiving of the control information between 15 pairs, control plane portion mobile radio station 20 and relay station 30 controls.That is, obtain the control information of being extracted by wireless communication part 11, and carry out the Control on Communication corresponding with this control information.Further, the control information being sent to mobile radio station 20 or relay station 30 is notified to wireless communication part 11.Such as, control plane portion 15 carries out the process of RRC (RadioResourceControlProtocol: radio resource control).
PDCCH signal during the process of PDCCH control part 16 pairs of random accesss controls.That is, determine to comprise which kind of information in indivedual headers notice (Msg0) utilizing PDCCH to send to mobile radio station 20 or relay station 30.Such as, sometimes the CI being used for the component carrier of data communication is inserted Msg0.
The transmitting-receiving of the user data between 17 pairs, datum plane portion mobile radio station 20 and relay station 30 controls.Such as, datum plane portion 17 carries out the process of PDCP (PacketDataConvergenceProtocol: PDCP), RLC (RadioLinkControl: wireless spread-spectrum technology) agreement and MAC (MediaAccessControl: medium access control) agreement.
RAR control part 18 controls MAC signal when carrying out the process of random access.That is, determine to comprise which kind of information in random access response (Msg2) utilizing PDSCH to send to mobile radio station 20 or relay station 30.Such as, sometimes the CI being used for the component carrier of data communication is inserted Msg2.
Fig. 7 is the block diagram representing mobile radio station.Mobile radio station 20 has: wireless communication part 21, across carrier wave configuration part 22, control part 23, control plane portion 24, PDCCH control part 25, datum plane portion 26 and RAR control part 27.
Wireless communication part 21 is the wave points carrying out radio communication with base station 10 and relay station 30.Wireless communication part 21 comprises the signal transacting of demodulating and decoding to the wireless signal received from base station 10 or relay station 30, and user data, control information is extracted.In addition, the user data sent towards base station 10 or relay station 30, control information are comprised to code modulated signal transacting and carry out wireless transmission.
Across carrier wave configuration part 22 according to the instruction from control part 23, when carrying out the process of random access, carry out the setting that wireless communication part 21 carries out the frequency band (component carrier) of signal transacting.Such as, be set as when Msg0 or Msg2 received comprises CI, the component carrier represented by CI can be used afterwards to carry out data communication.In addition, in this second embodiment, assuming that be inserted with the situation of CI in Msg0.
Control part 23 pairs of wireless communication parts 21 and controlling across the process of carrier wave configuration part 22.Control plane portion 24 and datum plane portion 26 is provided with in control part 23.PDCCH control part 25 is provided with in control plane portion 24.RAR control part 27 is provided with in datum plane portion 26.
The transmitting-receiving of the control information between base station 10,24 pairs, control plane portion and relay station 30 controls.That is, obtain the control information of being extracted by wireless communication part 21, and carry out the Control on Communication corresponding with this control information.In addition, the control information notice wireless communication part 21 will sent to base station 10 or relay station 30.Such as, control plane portion 24 carries out the process of RRC.
PDCCH control part 25 controls PDCCH signal when carrying out the process of random access.That is, the Msg0 received from base station 10 or relay station 30 utilizing PDCCH resolves, and carries out the process of the information comprised based on Msg0.Such as, when Msg0 is inserted with CI, becomes and the component carrier represented by CI can be utilized to carry out the state of the reception process of PDSCH.The beginning receiving process can comprise the activation of component carrier, by the distribution etc. of the buffer memory of the user data of reception storage.
The transmitting-receiving of the user data between base station 10,26 pairs, datum plane portion and relay station 30 controls.Such as, the process of PDCH, RLC and MAC is carried out.
RAR control part 27 controls MAC signal when carrying out the process of random access.That is, the Msg2 utilizing PDSCH to receive from base station 10 or relay station 30 is resolved, and carry out the process of the information comprised based on Msg2.Such as, when Msg2 is inserted with CI, becomes and the component carrier represented by CI can be utilized to carry out the state of the reception process of PDSCH.
In addition, identical with base station 10 and mobile radio station 20, also relay station 30 can be provided with wireless communication part, control part.In this case, the control part pair of relay station 30 carries out the process identical with the control part 23 of above-mentioned mobile radio station 20 with the radio communication between base station 10.In addition, for the control of the radio communication between same mobile radio station 20, the process identical with the control part 14 of above-mentioned base station 10 is carried out.
Fig. 8 is the flow chart of the base station process representing the second execution mode.By number of steps, the process shown in Fig. 8 is described.
(step S111) control part 14 sets the state of the CC#1 ~ #5 for mobile radio station 20.That is, determine above-mentioned " ConfiguredbutDeactivatedCC ", " ConfiguredandActivatedCC " and " PDCCHmonitoringset ".
(step S112) control part 14 judges whether to carry out across carrier dispatching.That is, judge whether to carry out data communication beyond the component carrier sending indivedual header notice (Msg0).Such as, judge whether to carry out across carrier dispatching according to the communication quality etc. of the size of the data sent to mobile radio station 20, the component carrier of transmission Msg0.When not carrying out across carrier dispatching, process is advanced to step S113.When carrying out across carrier dispatching, treatment step is advanced to S114.
The CI field (CIF) that (step S113) PDCCH control part 16 comprises at Msg0 sets 0b111.The component carrier that what this bit sequence represented is uses Msg0 to be sent out is to carry out data communication.In addition, 0b111 can be replaced, and setting represents the CI of 3 of the component carrier that Msg0 is sent out.Then, process is advanced to step S116.
(step S114) control part 14, among CC#1 ~ #5, selects one or more for the component carrier of data communication beyond the component carrier that Msg0 is sent out.Such as, component carrier is selected according to the size of data sent to mobile radio station 20, the communication quality of CC#1 ~ #5 etc.
(step S115) PDCCH control part 16 is shown in the CIF of 3 of the component carrier selected in step S114 in the CIF setting table that Msg0 comprises.In addition, Msg0 is sent to each component carrier selected in step S114.
The Msg0 being included in the CIF set in step S113 or step S115 sends to mobile radio station 20 by the component carrier that (step S116) wireless communication part 11 utilizes " PDCCHmonitoringset " to comprise.When have selected multiple component carrier in step S114, send multiple Msg0.Multiple Msg0 can be sent by identical wireless transmission unit (such as, same subframe), also can be sent dispersedly by different wireless transmission units (such as, different subframes).
(step S117) control part 14, when the component carrier notified by Msg0 is " ConfiguredbutDeactivatedCC " (unactivated state), changes to " ConfiguredandActivatedCC " (state of activation).Wireless communication part 11 utilizes the component carrier notified by Msg0 to receive random access header (Msg1) from mobile radio station 20.
(step S118) RAR control part 18 generates random access response (Msg2) not comprising CIF.The component carrier that wireless communication part 11 utilizes Msg1 to receive and Msg2 is sent to mobile radio station 20.Afterwards, utilize the component carrier being used to the transmitting-receiving of Msg1, Msg2 to carry out data communication.
Fig. 9 is the flow chart of the mobile radio station process representing the second execution mode.By number of steps, the process shown in Fig. 9 is described.
(step S121) control part 23 sets the state of CC#1 ~ #5.That is, " ConfiguredbutDeactivatedCC ", " ConfiguredandActivatedCC " and " PDCCHmonitoringset " is determined.The PDCCH of wireless communication part 21 to the component carrier that " PDCCHmonitoringset " comprises monitors.
The component carrier that (step S122) wireless communication part 21 utilizes " PDCCHmonitoringset " to comprise receives Msg0 from base station 10.The CIF that Msg0 comprises by PDCCH control part 25 extracts.When have received multiple Msg0, extract CIF from each Msg0.
(step S123) PDCCH control part 25 determines the component carrier represented by CIF extracted in step S122, and setting can utilize this component carrier to carry out the state of the reception process of PDSCH.When the component carrier represented by CIF is " ConfiguredbutDeactivatedCC ", change to " ConfiguredandActivatedCC ".The frequency band of signal transacting is carried out across carrier wave configuration part 22 setting.
(step S124) wireless communication part 21 utilizes the PRACH of the component carrier represented by CIF to be sent to base station 10 by the Msg1 employing the burst of being specified by Msg0.When have received multiple Msg0 and determine multiple component carrier in step S123, send Msg1 by the component carrier determined.Multiple Msg1 can send at identical time point, also can send at different time points.
(step S125) wireless communication part 21 utilizes the component carrier being used to the transmission of Msg1 to receive Msg2 from base station 10.RAR control part 27 carries out the process of the information comprised based on Msg2.Afterwards, utilize the component carrier being used to the transmitting-receiving of Msg1, Msg2 to carry out data communication.
Figure 10 is the figure of the first random access example representing the second execution mode.Here, for mobile radio station 20, CC#1, #2 are set as " ConfiguredandActivatedCC ", CC#3 ~ #5 is set as " ConfiguredbutDeactivatedCC ".In addition, set " PDCCHmonitoringset " and only comprise CC#1.
The utilization of (step S131) base station 10 is the CC#1 of " PDCCHmonitoringset " and is sent to mobile radio station 20 by the Msg0 comprising CIF=0b001.
(step S132) mobile radio station 20 utilizes the CC#2 represented by CIF=0b001 and is sent to base station 10 by Msg1.CC#2 is " ConfiguredandActivatedCC ", so can not carry out the Status Change of CC#2.
The utilization of (step S133) base station 10 receives the CC#2 of Msg1 and is sent to mobile radio station 20 by Msg2.Afterwards, in CC#2, such as, mobile radio station 20 sends data to base station 10.
In addition, the transmission characteristic of wireless signal presses the difference of component carrier (by frequency band) and different, so it is effective for receiving and dispatching Msg1, Msg2 realizing in the stabilisation of data communication for the component carrier of data communication.In addition, in order to be convenient in Fig. 10 illustrate only using CC#1 as " PDCCHmonitoringset ", but arbitrary CC can as " PDCCHmonitoringset ".In this case, Msg0 can be sent from the CC being set to " PDCCHmonitoringset ".
Figure 11 is the figure of the second random access example representing the second execution mode.When the process of random access starts, the state of CC#1 ~ #5 is identical with Figure 10.
The utilization of (step S141) base station 10 is that the Msg0 comprising CIF=0b010 sends to mobile radio station 20 by the CC#1 of " PDCCHmonitoringset ".CC#3 represented by CIF=0b010 is " ConfiguredbutDeactivatedCC ", so make CC#3 activate and change to " ConfiguredandActivatedCC ".
(step S142) mobile radio station 20 utilizes the CC#3 represented by CIF=0b010 and is sent to base station 10 by Msg1.Now, mobile radio station 20 is identical with base station 10, makes CC#3 activate and change to " ConfiguredandActivatedCC ".
The utilization of (step S143) base station 10 receives the CC#3 of Msg1 and is sent to mobile radio station 20 by Msg2.Afterwards, in CC#3, such as, mobile radio station 20 sends data to base station 10.
In addition, base station 10 and mobile radio station 20 carry out the Status Change of CC#3 in the process of transmitting-receiving Msg0, Msg1.That is, Msg0, Msg1 have the effect of the signal of the state changing CC#3 concurrently.Therefore, base station 10 and mobile radio station 20 can not carry out the signal of the state changing CC#3 in addition.
Figure 12 is the figure of the 3rd random access example representing the second execution mode.The state of the CC#1 ~ #5 when process of random access starts is identical with Figure 10.
The utilization of (step S151) base station 10 is the CC#1 of " PDCCHmonitoringset " and is sent to mobile radio station 20 by the Msg0 comprising CIF=0b001.
(step S152) base station 10 utilizes CC#1 to be sent to mobile radio station 20 by the Msg0 comprising CIF=0b010.CC#3 represented by CIF=0b010 is " ConfiguredbutDeactivatedCC ", changes to " ConfiguredandActivatedCC " so make CC#3 activate.In addition, 2 Msg0 can put transmission at one time.
(step S153) mobile radio station 20 utilizes the CC#2 represented by CIF=0b001 and is sent to base station 10 by Msg1.
(step S154) mobile radio station 20 utilizes the CC#3 represented by CIF=0b010 and is sent to base station 10 by Msg1.Now, mobile radio station 20 is identical with base station 10, makes CC#3 activate and change to " ConfiguredandActivatedCC ".In addition, 2 Msg1 can put transmission at one time.
(step S155) base station 10 receives Msg1 and is sent to mobile radio station 20 by Msg2 in CC#2.Afterwards, in CC#2, such as, mobile radio station 20 sends data to base station 10.
(step S156) base station 10 receives Msg1 and is sent to mobile radio station 20 by Msg2 in CC#3.Afterwards, in CC#3, such as, mobile radio station 20 sends data to base station 10.
In addition, the burst specified by the Msg0 sent in step S151 and the burst specified by Msg0 sent in step S152 can be the same or different.That is, mobile radio station 20 Msg1 sent in step S153 and the Msg1 sent in step S154 can be the use of the message of identical burst, also can be the use of the message of different bursts.
Example across carrier dispatching described above is the situation that supposition base station 10 identifies the state of the CC#1 ~ #5 of mobile radio station 20.When there is base station 10 or mobile radio station 20 and cannot using the component carrier of the part in CC#1 ~ #5, base station 10 by such component carrier except external selection is used for the component carrier of data communication.Such as, mobile radio station 20 is described above across carrier dispatching to carrying out during 10 random access of base station in the state according to connection mode or idle pulley.
Figure 13 is the figure of the first form example representing Msg0.Msg0 is the control message utilizing PDCCH to send.Msg0 comprises Flag, Local/Dist, ResourceBlockAssignment, PreambleIndex, PRACHMaskIndex, CarrierIndicator, CRC as field.The difference of the long DL bandwidth according to component carrier in position of ResourceBlockAssignment field and different.In fig. 13, Resource Block (RB:ResourceBlock) number is utilized to show bandwidth.100RB is equivalent to 20MHz width.
For the field beyond CarrierIndicator, such as, at " EvolvedUniversalTerrestrialRadioAccess (E-UTRA); Multiplexingandchannelcoding " (3GPP, TS36.212V9.0.0,2009-12) describe explanation.In this second embodiment, Flag is fixed as 1, Local/Dist and is fixed as 0, ResourceBlockAssignment and is all fixed as 1.The precision that Msg0 improves error detection is increased by inserting fixed bit.PreambleIndex is the information of the burst specified for Msg1.PRACHMaskIndex is the information of the transmission for Msg1.CRC is the verification (parity) of the error detection for Msg0.
As mentioned above, CarrierIndicator is used to specify the bit sequence of 3 sending the component carrier that data use.In the example of Figure 13, between PRACHMaskIndex field and crc field, be inserted with CarrierIndicator field.In addition, at above-mentioned document " EvolvedUniversalTerrestrialRadioAccess (E-UTRA); Multiplexingandchannelcoding " in describe the form being provided with Padding field between PRACHMaskIndex field and crc field.
Figure 14 is the figure of the second form example representing Msg0.In the form example of Figure 14, distribute to CarrierIndicator field by be assigned to the bit sequence of ResourceBlockAssignment field in the form example of Figure 13 first 3.That is, between Local/Dist field and ResourceBlockAssignment field, CarrierIndicator field is inserted with.In addition, between PRACHMaskIndex field and crc field, Padding field is provided with.Padding is all fixed as 1.
Figure 15 is the figure of the 3rd form example representing Msg0.In the form example of Figure 15, CarrierIndicator field is distributed at 3, the end being assigned to the bit sequence of ResourceBlockAssignment field in the form example of Figure 13.That is, between ResourceBlockAssignment field and PreambleIndex, CarrierIndicator field is inserted with.
In addition, except the form example of Figure 14, Figure 15, the method 3, the centre distributing to the bit sequence of ResourceBlockAssignment field in the form example of Figure 13 being distributed to CarrierIndicator field can also be considered.
But in above-mentioned form example, the data length of Msg0 is different according to the difference of the DL bandwidth of component carrier.Therefore, the situation utilizing CC#1 to send the different multiple Msg0 of data length may be produced.Such as, the DL bandwidth of setting CC#2 is the DL bandwidth of 20MHz, CC#3 is 10MHz.In this case, the data length of corresponding from CC#2 Msg0 and the Msg0 corresponding with CC#3 is different.
On the other hand, mobile radio station 20 couples of PDCCH carry out blind decoding thus are extracted by Msg0.Therefore, preferably carry out size adjustment to reduce the load of blind decoding, even if to make DL bandwidth different according to the difference of component carrier, the size of Msg0 is also fixing.And in order to easily extract CIF, the position of the CIF in preferred Msg0 entirety is fixed.
Figure 16 is the figure of the first little adjustment example representing Msg0.The size adjustment example of Figure 16 is corresponding with the form example shown in Figure 13.In this size adjustment example, between ResourceBlockAssignment field with PreambleIndex field, be inserted with the PADDING of the length corresponding with DL bandwidth.Thus, the size of Msg0 is fixed and has nothing to do with DL bandwidth.In addition, because the position of CIF is fixed, so after Msg0 decoding, easily extract the component carrier that CIF determines to use.And, because the position of PreambleIndex field and PRACHMaskIndex field is fixed, so easily generate Msg1 with reference to these fields.
Figure 17 is the figure of the second largest little adjustment example representing Msg0.The size adjustment example of Figure 17 is corresponding with the form example shown in Figure 14.Adjust routine identical with the size of Figure 16, between ResourceBlockAssignment field with PreambleIndex field, insert the PADDING of the length corresponding with DL bandwidth.Thus, the size of Msg0 fix and the position of CIF fix and with DL bandwidth have nothing to do.In addition, the position of PreambleIndex field and PRACHMaskIndex field is also fixed.
Figure 18 is the figure of the third-largest little adjustment example representing Msg0.The size adjustment example of Figure 18 is corresponding with the form example shown in Figure 15.In this size adjustment example, between Local/Dist field with ResourceBlockAssignment field, insert the PADDING of the length corresponding with DL bandwidth.Thus, the size of Msg0 fix and the position of CIF fix and with DL bandwidth have nothing to do.In addition, the position of PreambleIndex field and PRACHMaskIndex field is fixed.
According to the mobile communication system involved by above-mentioned second execution mode, the usage license of the component carrier except the component carrier that have sent Msg0 can be supplied to mobile radio station 20 by sending Msg0 by base station 10.That is, Msg0 can be used realize across carrier dispatching.Therefore, base station 10 and mobile radio station 20 can not carry out the process of the usage license of component carrier in addition.
And the component carrier of unactivated state, along with the transmitting-receiving of Msg0, Msg1, is changed to state of activation by base station 10 and mobile radio station 20.Therefore, the process of the Status Change of component carrier can not be carried out in addition.Like this, base station 10 and mobile radio station 20 can carry out the use control of multiple component carrier effectively.
[the 3rd execution mode]
Next, the 3rd execution mode is described.By with the difference of the second above-mentioned execution mode centered by be described, identical item is omitted the description.Relative to using Msg0 in this second embodiment to realize across carrier dispatching, in the third embodiment, Msg2 is used to realize across carrier dispatching.
The mobile communication system of the 3rd execution mode can be realized by the System's composition identical with the mobile communication system of the second execution mode shown in Fig. 2.In addition, the base station of the 3rd execution mode and mobile radio station can by with Fig. 6, the base station 10 of the second execution mode shown in 7 and the identical mount structure of mobile radio station 20 realize.Below, be used in Fig. 2, Fig. 6, symbol employed in figure 7 is described the 3rd execution mode.
Figure 19 is the flow chart of the base station process representing the 3rd execution mode.By number of steps, the process shown in Figure 19 is described.
(step S211) control part 14 sets the state of the CC#1 ~ #5 for mobile radio station 20.That is, determine above-mentioned " ConfiguredbutDeactivatedCC ", " ConfiguredandActivatedCC " and " PDCCHmonitoringset ".
(step S212) PDCCH control part 16 generates indivedual headers notice (Msg0) not comprising CIF.Msg0 sends to mobile radio station 20 by the component carrier that wireless communication part 11 utilizes " PDCCHmonitoringset " to comprise.
(step S213) wireless communication part 11 utilizes the component carrier of the transmission being used for Msg0 to receive random access header (Msg1) from mobile radio station 20.
(step S214) control part 14 judges whether to carry out across carrier dispatching.That is, judge whether carry out data communication beyond the component carrier sending random access response (Msg2).When not carrying out across carrier dispatching, process is advanced to step S215.When carrying out across carrier dispatching, process is advanced to step S216.
The CIF that (step S215) RAR control part 18 comprises at Msg2 sets 0b111.This bit sequence represents that the component carrier using Msg2 to send is to carry out data communication.Then, process is advanced to step S218.
One or more component carrier for data communication beyond the component carrier that (step S216) control part 14 selects Msg2 to be sent out from CC#1 ~ #5.
(step S217) RAR control part 18 setting table is shown in the CIF of 3 of the component carrier selected in step S216.In addition, Msg2 is sent to each of the component carrier selected in step S216.
Msg2 containing the CIF set in step S215 or step S217 sends to mobile radio station 20 by the component carrier that (step S218) wireless communication part 11 utilizes " PDCCHmonitoringset " to comprise.When have selected multiple component carrier in step S216, send multiple Msg2.Control part 14, when the component carrier notified by Msg2 is for " ConfiguredbutDeactivatedCC " (unactivated state), changes to " ConfiguredandActivatedCC " (state of activation).Afterwards, the component carrier notified by Msg2 is utilized to carry out data communication.
Figure 20 is the flow chart of the mobile radio station process representing the 3rd execution mode.By number of steps, the process shown in Figure 20 is described.
(step S221) control part 23 sets the state of CC#1 ~ #5.That is, " ConfiguredbutDeactivatedCC ", " ConfiguredandActivatedCC " and " PDCCHmonitoringset " is determined.The PDCCH of wireless communication part 21 to the component carrier that " PDCCHmonitoringset " comprises monitors.
The component carrier that (step S222) wireless communication part 21 utilizes " PDCCHmonitoringset " to comprise receives the Msg0 not comprising CIF from base station 10.
(step S223) wireless communication part 21 utilizes the PRACH being used to the component carrier of the transmission of Msg0 to be sent to base station 10 by the Msg1 of the burst employed specified by Msg0.
The component carrier that (step S224) wireless communication part 21 utilizes the transmission of Msg1 to use receives Msg2 from base station 10.The CIF that Msg2 comprises by RAR control part 27 extracts.When receiving multiple Msg2, extract CIF from each Msg2.
(step S225) RAR control part 27 determines represented by CIF 1 or multiple component carrier extracting in step S224, becomes the state that this component carrier can be utilized to carry out the reception process of PDSCH.When the component carrier shown in CIF is " ConfiguredbutDeactivatedCC ", change to " ConfiguredandActivatedCC ".The frequency band of signal transacting is carried out across carrier wave configuration part 22 setting.
(step S226) wireless communication part 21 utilizes the component carrier determined in step S225 to carry out data communication.
Figure 21 is the figure of the first random access example representing the 3rd execution mode.Here, for mobile radio station 20, CC#1, #2 are set as " ConfiguredandActivatedCC ", CC#3 ~ #5 is set as " ConfiguredbutDeactivatedCC ".In addition, set " PDCCHmonitoringset " and only comprise CC#1.
The utilization of (step S231) base station 10 is that Msg0 sends to mobile radio station 20 by the CC#1 of " PDCCHmonitoringset ".
(step S232) mobile radio station 20 utilizes the CC#1 receiving Msg0 to be sent to base station 10 by Msg1.
(step S233) base station 10 utilizes the CC#1 receiving Msg1 to be sent to mobile radio station 20 by the Msg2 comprising CIF=0b001.In addition, Msg2 contains the time point adjustment information of the UL frequency band for CC#2.
(step S234) mobile radio station 20 in the CC#2 shown in CIF=0b001, such as, sends data to base station 10.In addition, because CC#2 is " ConfiguredandActivatedCC ", so the Status Change of CC#2 can not be carried out.
Figure 22 is the figure of the second random access example representing the 3rd execution mode.When the process of random access starts, the state of CC#1 ~ #5 is identical with Figure 21.
The utilization of (step S241) base station 10 is that Msg0 sends to mobile radio station 20 by the CC#1 of " PDCCHmonitoringset ".
(step S242) mobile radio station 20 utilizes the CC#1 receiving Msg0 to be sent to base station 10 by Msg1.
(step S243) base station 10 utilizes the CC#1 receiving Msg1 to be sent to mobile radio station 20 by the Msg2 comprising CIF=0b010.CC#3 shown in CIF=0b010 is " ConfiguredbutDeactivatedCC ", so make CC#3 activate and change to " ConfiguredandActivatedCC ".In addition, Msg2 contains the time point adjustment information of the UL frequency band for CC#3.
(step S244) mobile radio station 20 in the CC#3 shown in CIF=0b010, such as, sends data to base station 10.Now, mobile radio station 20 is identical with base station 10, makes CC#3 activate and change to " ConfiguredandActivatedCC ".
Figure 23 is the figure of the 3rd random access example representing the 3rd execution mode.When the process of random access starts, the state of CC#1 ~ #5 is identical with Figure 21.
The utilization of (step S251) base station 10 is that Msg0 sends to mobile radio station 20 by the CC#1 of " PDCCHmonitoringset ".
(step S252) mobile radio station 20 utilizes the CC#1 receiving Msg0 to be sent to base station 10 by Msg1.
(step S253) base station 10 utilizes the CC#1 receiving Msg1 to be sent to mobile radio station 20 by the Msg2 comprising CIF=0b001.In addition, this Msg2 contains the time point adjustment information of the UL frequency band for CC#2.
(step S254) base station 10 utilizes the CC#1 receiving Msg1 to be sent to mobile radio station 20 by the Msg2 comprising CIF=0b010.CC#3 shown in CIF=0b010 is " ConfiguredbutDeactivatedCC ", so make CC#3 activate and change to " ConfiguredandActivatedCC ".In addition, this Msg2 contains the time point adjustment information of the UL frequency band for CC#3.
(step S255) mobile radio station 20 in the CC#2 shown in CIF=0b001, such as, sends data to base station 10.
(step S256) mobile radio station 20 in the CC#3 shown in CIF=0b010, such as, sends data to base station 10.Now, mobile radio station 20 is identical with base station 10, makes CC#3 activate and change to " ConfiguredandActivatedCC ".
Figure 24 is the figure of the first form example representing Msg2.In the form example of Figure 24, Msg2 comprises the TemporaryC-RNTI of the CarrierIndicator of 3, the TimingAdvanceCommand of 6,20 ULgrant and 16.
As mentioned above, CarrierIndicator is the value identifying the component carrier sent for data.TimingAdvanceCommand is the value of the correction represented when making mobile radio station 20 revise UL transmitting time point.ULgrant is the information representing the UL Radio Resource distributing to mobile radio station 20.TemporaryC-RNTI is the identification code that base station 10 is dynamically distributed to mobile radio station 20.In addition, TimingAdvanceCommand represents the correction for the component carrier shown in CarrierIndicator.Therefore, mobile radio station 20 uses TimingAdvanceCommand to adjust the UL transmitting time point after the process of random access.
Here, for TimingAdvanceCommand, such as, at " EvolvedUniversalTerrestrialRadioAccess (E-UTRA); Physicallayerprocedures " record explanation in (3GPPTS36.213V9.0.1,2009-12).
In the above documents, as TimingAdvanceCommand, the absolute value that definition time point staggers and with the time point that current correction the is complete relative value that is benchmark two kinds.When initial notice TimingAdvanceCommand, last time notice valid expiration date of TimingAdvanceCommand use absolute value in overdue situation.Last time notice valid expiration date of TimingAdvanceCommand there is no overdue situation under use relative value.Absolute value is existing by 11 bit tables, and relative value is existing by 6 bit tables.The form example of Figure 24 is the situation that supposition uses relative value.
In addition, in this form example, reservation (Reserved) position of front end is set as 1.The R position not comprising the front end of the Msg2 of CIF is set as 0.Thus, mobile radio station 20 easily can distinguish whether be the Msg2 comprising CIF.
Figure 25 is the figure of the second form example representing Msg2.In the form example of Figure 25, Msg2 comprises the TemporaryC-RNTI of the TimingAdvanceCommand of 11, the ULgrant of 20,3 CarrierIndicator and 13.When this form example, absolute value can be used as TimingAdvanceCommand.On the other hand, compared with the situation of Figure 24, few 3 of TemporaryC-RNTI.Base station 10 can by the identity assignments of less than 13 performances to mobile radio station 20.
Figure 26 is the figure of the 3rd form example representing Msg2.In the form example of Figure 26, Msg2 comprises the CarrierIndicator of the TimingAdvanceCommand of 11, the ULgrant of 20,16 TemporaryC-RNTI and 3.When this form example, absolute value can be used as TimingAdvanceCommand.In addition, base station 10 can by the identity assignments of larger value to mobile radio station 20 compared with the situation of Figure 25.But, with Figure 24,25 form example compared with, the size of Msg2 becomes large.In addition, in fig. 26 end is provided with CIF, but also can inserts CIF in other position.
According to the mobile communication system involved by above-mentioned 3rd execution mode, the usage license of the component carrier except the component carrier that have sent Msg2 can be supplied to mobile radio station 20 by sending Msg2 by base station 10.That is, Msg2 can be used realize across carrier dispatching.Therefore, base station 10 and mobile radio station 20 can not carry out the process of the usage license of component carrier in addition.
And the component carrier of unactivated state is changed to state of activation along with the transmitting-receiving of Msg2 by base station 10 and mobile radio station 20.Therefore, the process of the Status Change of component carrier can not be carried out in addition.Like this, base station 10 and mobile radio station 20 identical with the second execution mode, can effectively carry out multiple component carrier use control.
[the 4th execution mode]
Next, the 4th execution mode is described.By with the difference of second, third above-mentioned execution mode centered by be described, identical item is then omitted the description.In the 4th execution mode, identical with the 3rd execution mode, use Msg2 to realize across carrier dispatching.But, relative to the situation considering non-competing formula random access in the third embodiment, in the 4th execution mode, consider the situation of competitive mode random access.
The mobile communication system of the 4th execution mode can be realized by the system configuration identical with the mobile communication system of the second execution mode shown in Fig. 2.In addition, the mount structure that the base station of the 4th execution mode and mobile radio station can be identical by the base station 10 and mobile radio station 20 with the second execution mode shown in Fig. 6,7 realizes.Below, be used in Fig. 2, Fig. 6, symbol employed in figure 7 is described the 4th execution mode.
Figure 27 is the flow chart of the base station process representing the 4th execution mode.By number of steps, the process shown in Figure 27 is described.
(step S311) control part 14 sets the state of the CC#1 ~ #5 for mobile radio station 20.That is, determine above-mentioned " ConfiguredbutDeactivatedCC ", " ConfiguredandActivatedCC " and " PDCCHmonitoringset ".
The component carrier that (step S312) wireless communication part 11 utilizes " PDCCHmonitoringset " to comprise receives random access header (Msg1) from mobile radio station 20.Burst for Msg1 is mobile radio station 20 Stochastic choice.
(step S313) control part 14 judges whether to carry out across carrier dispatching.When not carrying out across carrier dispatching, process is advanced to step S314.When carrying out across carrier dispatching, process is advanced to step S315.
The CIF that (step S314) RAR control part 18 comprises at Msg2 sets 0b111.And, process is advanced to step S317.
(step S315) control part 14 selects one or more component carrier for data communication sent beyond the component carrier of Msg2 among CC#1 ~ #5.
(step S316) RAR control part 18 setting table is shown in the CIF of 3 of the component carrier selected in step S315.In addition, Msg2 sends each component carrier selected in step S315.
(step S317) wireless communication part 11 utilizes the component carrier receiving Msg1 to send the Msg2 being included in the CIF set in step S314 or step S316.When have selected multiple component carrier in step S315, send multiple Msg2.
(step S318) wireless communication part 11 utilizes the component carrier notified by Msg2 to receive Msg3 from mobile radio station 20.Now, control part 14, when the component carrier notified by Msg2 is for " ConfiguredbutDeactivatedCC " (unactivated state), changes to " ConfiguredandActivatedCC " (state of activation).
(step S319) wireless communication part 11 utilizes the component carrier receiving Msg3 to be sent to mobile radio station 20 by Msg4.Afterwards, the component carrier being used to the transmitting-receiving of Msg3, Msg4 is utilized to carry out data communication.
Figure 28 is the flow chart of the mobile radio station process representing the 4th execution mode.By number of steps, the process shown in Figure 28 is described.
(step S321) control part 23 sets the state of CC#1 ~ #5.That is, " ConfiguredbutDeactivatedCC ", " ConfiguredandActivatedCC " and " PDCCHmonitoringset " is determined.The PDCCH of wireless communication part 21 to the component carrier that " PDCCHmonitoringset " comprises monitors.
The Msg1 employing the burst of Stochastic choice sends to base station 10 by the PRACH of the component carrier that (step S322) wireless communication part 21 utilizes " PDCCHmonitoringset " to comprise.
(step S323) wireless communication part 21 utilizes the component carrier being used to the transmission of Msg1 to receive Msg2 from base station 10.RAR control part 27 extracts the CIF that Msg2 comprises.When receiving multiple Msg2, extract CIF from each Msg2.
(step S324) RAR control part 27 determines shown in CIF 1 or multiple component carrier extracting in step S323.When the component carrier shown in CIF is " ConfiguredbutDeactivatedCC ", change to " ConfiguredandActivatedCC ".The frequency band of signal transacting is carried out across carrier wave configuration part 22 setting.
(step S325) wireless communication part 21 utilizes the component carrier shown in CIF and sends Msg3 to base station 10.When receiving multiple Msg2 and determine multiple component carrier in step S324, send Msg3 to each component carrier determined.Multiple Msg3 can put transmission at one time and also can send at different time points.
(step S326) wireless communication part 21 utilizes the component carrier being used to the transmission of Msg3 to receive Msg4 from base station 10.Afterwards, the component carrier being used to the transmitting-receiving of Msg3, Msg4 is utilized to carry out data communication.
Figure 29 is the figure of the first random access example representing the 4th execution mode.Here, for mobile radio station 20, CC#1, #2 are set as " ConfiguredandActivatedCC ", CC#3 ~ #5 is set as " ConfiguredbutDeactivatedCC ".In addition, set " PDCCHmonitoringset " and only comprise CC#1.
The utilization of (step S331) mobile radio station 20 is that the Msg1 employing the burst of Stochastic choice sends to base station 10 by the CC#1 of " PDCCHmonitoringset ".
(step S332) base station 10 utilizes the CC#1 receiving Msg1 to send the Msg2 comprising CIF=0b001.
(step S333) mobile radio station 20 utilizes the CC#2 represented by CIF=0b001 that Msg3 is sent to base station 10.
(step S334) base station 10 utilizes the CC#2 receiving Msg3 to be sent to mobile radio station 20 by Msg4.Afterwards, in CC#2, such as, mobile radio station 20 sends data to base station 10.But when the competition creating random access, mobile radio station 20 restarts from the transmission of Msg1.
Figure 30 is the figure of the second random access example representing the 4th execution mode.When the process of random access starts, the state of CC#1 ~ #5 is identical with Figure 29.
The utilization of (step S341) mobile radio station 20 is that the Msg1 employing the burst of Stochastic choice sends to base station 10 by the CC#1 of " PDCCHmonitoringset ".
(step S342) base station 10 utilizes the CC#1 receiving Msg1 to send the Msg2 comprising CIF=0b010.CC#3 shown in CIF=0b010 is " ConfiguredbutDeactivatedCC ", so make CC#3 activate and change to " ConfiguredandActivatedCC ".
(step S343) mobile radio station 20 utilizes the CC#3 shown in CIF=0b010 to be sent to base station 10 by Msg3.Mobile radio station 20 is identical with base station 10, makes CC#3 activate and change to " ConfiguredandActivatedCC ".
(step S344) base station 10 utilizes the CC#3 receiving Msg3 to be sent to mobile radio station 20 by Msg4.Afterwards, in CC#3, such as, mobile radio station 20 sends data to base station 10.
Figure 31 is the figure of the 3rd random access example representing the 4th execution mode.When the process of random access starts, the state of CC#1 ~ #5 is identical with Figure 29.
The utilization of (step S351) mobile radio station 20 is that the Msg1 of the burst employing Stochastic choice is sent to base station 10 by the CC#1 of " PDCCHmonitoringset ".
(step S352) base station 10 utilizes the CC#1 receiving Msg1 to be sent to mobile radio station 20 by the Msg2 comprising CIF=0b001.
(step S353) base station 10 utilizes the CC#1 receiving Msg1 to be sent to mobile radio station 20 by the Msg2 comprising CIF=0b010.CC#3 " for ConfiguredbutDeactivatedCC " shown in CIF=0b010, so make CC#3 activate and change to " ConfiguredandActivatedCC ".
(step S354) mobile radio station 20 utilizes the CC#2 shown in CIF=0b001 to be sent to base station 10 by Msg3.
(step S355) mobile radio station 20 utilizes the CC#3 shown in CIF=0b010 to be sent to base station 10 by Msg3.Now, mobile radio station 20 is identical with base station 10, makes CC#3 activate and change to " ConfiguredandActivatedCC ".
(step S356) base station 10 utilizes the CC#2 receiving Msg3 to be sent to mobile radio station 20 by Msg4.
(step S357) base station 10 utilizes the CC#3 receiving Msg3 to be sent to mobile radio station 20 by Msg4.
The routine form as the Msg2 of the 4th execution mode of the form illustrated in the third embodiment can be used.But, in competitive mode random access, may not recognize mobile radio station 20 in the delivery time base station 10 of Msg2, so preferably use Figure 25,26 such forms that can send the TimingAdvanceCommand of absolute value.In addition, in view of identical reason, in the 4th execution mode, preferred mobile radio station 20 can use all or multiple component carriers of regulation.
In addition, consider when competitive mode random access to carry out across carrier dispatching to reach following object, namely, multiple mobile radio station load be do not concentrate use determine component carrier, in order to suppress presence of intercell interference to make in the component carrier dispersion carrying out using in the process of random access, making to make competition probability reduce the component carrier dispersion etc. that uses in the transmission at Msg3.
According to the mobile communication system involved by above-mentioned 4th execution mode, identical with the 3rd execution mode, base station 10 can use Msg2 and realize across carrier dispatching.Therefore, the process of the usage license of component carrier can not be carried out in addition.And the component carrier of unactivated state is changed to state of activation along with the transmitting-receiving of Msg2, Msg3 by base station 10 and mobile radio station 20.Therefore, the process of the Status Change of component carrier can not be carried out in addition.Like this, base station 10 and mobile radio station 20 identical with second, third execution mode, can effectively carry out multiple component carrier use control.
Foregoing merely represents principle of the present invention.And, much can be out of shape to those skilled in the art, change, the present invention is not limited to above-mentioned expression and the correct structure illustrated and application examples, and corresponding whole variation and coordinate are all considered as the scope of the present invention of adding claim and its coordinate paid.
Symbol description
1,2 ... radio communication device; 1a, 2b ... control part; 1b ... sending part; 2a ... acceptance division.

Claims (4)

1. a radio communication device, uses multiple frequency band to communicate with other radio communication device, it is characterized in that having:
Acceptance division, when carrying out for other the process of random access of radio communication device described, this acceptance division uses the first frequency band to carry out receiving control message as the response message corresponding to the header messages sent by described radio communication device, and described control message makes with second frequency bands for communication different from described first frequency band; With
Control part, this control part controls, so that when described control message corresponds to described header messages, uses described second frequency band to come to carry out data communication between other radio communication device described.
2. a radio communication device, uses multiple frequency band to communicate with other radio communication device, it is characterized in that having:
Control part, its select second frequency band different from the first frequency band as described other radio communication device data communication in the frequency band that uses; With
Sending part, when carrying out the process of random access, this sending part uses described first frequency band to transmit control message as the response message corresponding to the header messages received from other radio communication device described to other radio communication device described, described control message make with described second frequency bands for communication selected by described control part.
3. a wireless communication system, uses multiple frequency band to communicate, and it is characterized in that, has:
First radio communication device, when carrying out the process of random access, this first radio communication device uses the first frequency band to transmit control message the response message as corresponding to the header messages received from communication counterpart, and described control message makes with second frequency bands for communication different from described first frequency band; With
Second radio communication device, it uses described first frequency band to receive described control message from described first radio communication device, and when described control message corresponds to the described header messages sent by own device, use described second frequency band to carry out data communication.
4. a wireless communications method, using the first radio communication device of multiple frequency bands for communication and the wireless communication system of the second radio communication device for comprising, it is characterized in that,
When carrying out the process based on the random access of described second radio communication device, described first radio communication device uses the first frequency band to send the response message as corresponding to the header messages received from described second radio communication device to described second radio communication device, described control message makes with second frequency bands for communication different from described first frequency band
Described second radio communication device uses described first frequency band to receive described control message from described first radio communication device,
When described control message corresponds to described header messages, described second radio communication device uses described second frequency band to carry out data communication.
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